Files
I Hsin Cheng 04bfee4427 runsc: Fix newline for cmd usage display
Originally, some of the commands' usage display didn't achieved to show
newline, while some of them does, which are more user-friendly, and
won't confuse the message if there're more which should be in the
nextline.

Fix this issue by returning usage string with a newline.

Signed-off-by: I Hsin Cheng <[email protected]>
2024-12-29 03:49:46 +08:00

55 lines
1.6 KiB
Go

// Copyright 2021 The gVisor Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package cmd
import (
"context"
"fmt"
"os"
"github.com/google/subcommands"
"gvisor.dev/gvisor/pkg/sentry/platform"
"gvisor.dev/gvisor/runsc/flag"
)
// Platforms implements subcommands.Command for the "platforms" command.
type Platforms struct{}
// Name implements subcommands.Command.Name.
func (*Platforms) Name() string {
return "platforms"
}
// Synopsis implements subcommands.Command.Synopsis.
func (*Platforms) Synopsis() string {
return "Print a list of available platforms."
}
// Usage implements subcommands.Command.Usage.
func (*Platforms) Usage() string {
return "platforms [options] - Print available platforms.\n"
}
// SetFlags implements subcommands.Command.SetFlags.
func (*Platforms) SetFlags(f *flag.FlagSet) {}
// Execute implements subcommands.Command.Execute.
func (*Platforms) Execute(_ context.Context, f *flag.FlagSet, args ...any) subcommands.ExitStatus {
for _, p := range platform.List() {
fmt.Fprintf(os.Stdout, "%s\n", p)
}
return subcommands.ExitSuccess
}